A piece of a comet decided to take a fatal dive into the Earth’s atmosphere, causing a bright flash and explosion tens of kilometers above the ground. The luminous celestial event passed across the ...

The comet will come much closer to Jupiter in March, zipping within 33 million miles. It will be the mid-2030s before it ...

A NASA planetary scientist has proposed what may be the first scientifically sound explanation for the mysterious Star of Bethlehem that guided the three wise men to the infant Jesus over two ...